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LM39501T

更新时间： 2024-01-19 13:51:10
品牌 Logo 应用领域
韩国泰进 - HTC 稳压器
页数 文件大小 规格书
6页 221K
描述
5A Low-Voltage Low-Dropout Regulator

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中文翻译

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LM39501T 数据手册

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5A Low-Voltage Low-Dropout Regulator  
LM39500/39501/39502  
FEATURES  
TO263-3L / TO220-3L  
(39500-x.x Fixed only)  
● 5.0A minimum guaranteed output current  
● 400mV typical dropout voltage  
Ideal for 3.0V to 2.5V conversion  
1. In  
2. Gnd  
3. Out  
Ideal for 2.5V to 1.8V or 1.5V conversion  
● 1% initial accuracy  
1
3
● Low ground current  
3
1
● Current limiting and thermal shutdown  
● Reversed-battery protection  
● Reversed-leakage protection  
● Fast transient response  
TO263-5L / TL220-5L  
(39501-x.x & 39502 only)  
● TTL/CMOS compatible enable pin => LM39501  
● Error flag output - LM39501 only  
1. En  
2. In  
● Ceramic capacitor stable(See application  
information)  
3. Gnd  
1
4. Out  
1
5
● Adjustable version - LM39502 only  
● Moisture Sensitivity Level 3  
5. Flg or Adj  
5
PIN DESCRIPTION  
CMOS-compatible control input.  
APPLICATIONS  
Enable  
Logic high = enable, logic  
● Low-voltage Digatal Ics  
(Input)  
Logic low or open = Shutdown  
● LDO linear regulator for PC add-in cards  
● High-efficiency linear power supplies  
● Multimedia and PC processor supplies  
● SMPS post regulator  
IN  
Supply (Input): +16V maximum supply  
Ground pin and TAB are internally connected.  
Regulator Output  
GND  
OUT  
FLG  
ADJ  
Flag (Output): Open-collector error flag output.  
Adjustment Input: Feedback input.  
● Low-voltage microcontrollers  
● Strong ARM™ processor supply  
ORDERING INFORMATION  
Marking  
Device  
Package  
TO-263  
TO-220  
TO-263  
TO-220  
TO-263  
TO-220  
LM39500R- X.X  
LM39500T-X.X  
LM39501R-X.X  
LM39501T-X.X  
LM39502R-Adj  
LM39502T-Adj  
LM39500-X.X  
LM39500-X.X  
LM39501-X.X  
LM39501-X.X  
LM39502-Adj  
LM39502-Adj  
DESCRIPTION  
The LM39500, LM39501 and LM39502 is a 5A low drop  
−out linear voltage regulator that provides a low-voltage,  
high-current output with a minimum of external  
components. Utilizing Super beta PNP pass element.  
The LM39500 offers extremely low dropout (typically  
400mV at 5A) and low ground current (typically 70mA  
at 5A).  
* X.X = Fixed Vout = 1.5V, 1.8V, 2.5V, 3.3V, 5.0V  
The LM39500/1/2 is ideal for PC Add-In cards that need to convert from standard 5V or 3.3V, down to new, lower  
core voltages. A guaranteed maximum dropout voltage of 500mV over all operating allows the LM39500/1/2 to  
provide LM39500/1/2 to 2.5V from a supply as low as 3V. The LM39500 also has fast transient response, for heavy  
switching applications.  
The device requires only 47F of output capacitance to maintain stability and achieve fast transient response.  
The LM39500/1/2 is fully protected with overcurrent limiting, thermal shutdown, reversed-battery and reversed-lead  
in-sertion protection.  
The LM39501 offers a TTL-logic-compat-ible enable pin and an error flag that indicates undervoltage and overcurrent  
conditions.  
The LM39500/1/2 comes in the TO-220 and TO-263 packages and is an ideal upgrade to older,NPN-based linear  
voltage regulators.  
The LM39502 is adjustable version.  
2008 - Ver 1.0  
HTC  
− 1 −  
123456

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